﻿#banner{
    position:relative;
    height:600px;
    overflow:hidden;
}
#prev,#next{
    display:block;
    width:49px;
    height:49px;
}
#banner_list{
    width:40000px;
     position: absolute;
     z-index:1;
     height:600px;
}
#banner_list img{
    float:left;
    width:1920px;
}
#prev {
    position: absolute;
    top: 50%;
    margin-top: -24px;
    background: url('../images/prev.png') no-repeat 0 0;
    left: 5%;
      z-index:2;
}
#next {
    position: absolute;
    top: 50%;
    margin-top: -24px;
    right: 5%;
    background: url('../images/next.png') no-repeat 0 0;
    z-index:2;
}

#banner_btn span{
    width:10px;
    height:10px;
    display:inline-block;
    margin-right:10px;
    background:#fff;
 
}
#banner_btn{
       position:absolute;
    bottom:20px;
    left:50%;
    border-radius:50%;
    z-index: 3;
}
#banner_btn span.on{
    background:#ff7300;
}